X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flod%2Flod_internal.h;h=b4783329227865597a4db6806b736fd06fbe11d7;hp=8782d724467e762b0a2d445a0d84d8a95906f8d4;hb=083d62ee6de5ac6cee95c1d2f86b62b75034093b;hpb=217088f6b47c817ae543bdfba37052134c51c739 diff --git a/lustre/lod/lod_internal.h b/lustre/lod/lod_internal.h index 8782d72..b478332 100644 --- a/lustre/lod/lod_internal.h +++ b/lustre/lod/lod_internal.h @@ -6,13 +6,13 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 only, * as published by the Free Software Foundation. - + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License version 2 for more details. A copy is * included in the COPYING file that accompanied this code. - + * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA @@ -22,6 +22,8 @@ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved * Use is subject to license terms. + * + * Copyright (c) 2012, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -37,14 +39,84 @@ #define _LOD_INTERNAL_H #include +#include #include #include #define LOV_USES_ASSIGNED_STRIPE 0 #define LOV_USES_DEFAULT_STRIPE 1 -struct lod_ost_desc { - struct dt_device *ltd_ost; +/* Special values to remove LOV EA from disk */ +#define LOVEA_DELETE_VALUES(size, count, offset, pool) \ + ((size) == 0 && (count) == 0 && \ + (offset) == (typeof(offset))(-1) && (pool) == NULL) + +#define LMVEA_DELETE_VALUES(count, offset) \ + ((count) == 0 && (offset) == (typeof(offset))(-1)) + +#define LOV_OFFSET_DEFAULT ((__u16)-1) + +struct lod_qos_rr { + spinlock_t lqr_alloc; /* protect allocation index */ + __u32 lqr_start_idx; /* start index of new inode */ + __u32 lqr_offset_idx;/* aliasing for start_idx */ + int lqr_start_count;/* reseed counter */ + struct ost_pool lqr_pool; /* round-robin optimized list */ + unsigned long lqr_dirty:1; /* recalc round-robin list */ +}; + +struct pool_desc { + char pool_name[LOV_MAXPOOLNAME + 1]; + struct ost_pool pool_obds; /* pool members */ + atomic_t pool_refcount; + struct lod_qos_rr pool_rr; + struct hlist_node pool_hash; /* access by poolname */ + struct list_head pool_list; + struct proc_dir_entry *pool_proc_entry; + struct obd_device *pool_lobd; /* owner */ +}; + +#define pool_tgt_count(p) ((p)->pool_obds.op_count) +#define pool_tgt_array(p) ((p)->pool_obds.op_array) +#define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem) + +struct lod_qos { + struct list_head lq_oss_list; + struct rw_semaphore lq_rw_sem; + __u32 lq_active_oss_count; + unsigned int lq_prio_free; /* priority for free space */ + unsigned int lq_threshold_rr;/* priority for rr */ + struct lod_qos_rr lq_rr; /* round robin qos data */ + bool lq_dirty:1, /* recalc qos data */ + lq_same_space:1,/* the ost's all have approx. + the same space avail */ + lq_reset:1; /* zero current penalties */ +}; + +struct lod_qos_oss { + struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */ + struct list_head lqo_oss_list; /* link to lov_qos */ + __u64 lqo_bavail; /* total bytes avail on OSS */ + __u64 lqo_penalty; /* current penalty */ + __u64 lqo_penalty_per_obj; /* penalty decrease + every obj*/ + time64_t lqo_used; /* last used time, seconds */ + __u32 lqo_ost_count; /* number of osts on this oss */ + __u32 lqo_id; /* unique oss id */ +}; + +struct ltd_qos { + struct lod_qos_oss *ltq_oss; /* oss info */ + __u64 ltq_penalty; /* current penalty */ + __u64 ltq_penalty_per_obj; /* penalty decrease + every obj*/ + __u64 ltq_weight; /* net weighting */ + time64_t ltq_used; /* last used time, seconds */ + bool ltq_usable:1; /* usable for striping */ +}; + +struct lod_tgt_desc { + struct dt_device *ltd_tgt; struct list_head ltd_kill; struct obd_export *ltd_exp; struct obd_uuid ltd_uuid; @@ -52,108 +124,325 @@ struct lod_ost_desc { __u32 ltd_index; struct ltd_qos ltd_qos; /* qos info per target */ struct obd_statfs ltd_statfs; + struct ptlrpc_thread *ltd_recovery_thread; unsigned long ltd_active:1,/* is this target up for requests */ ltd_activate:1,/* should target be activated */ - ltd_reap:1; /* should this target be deleted */ + ltd_reap:1, /* should this target be deleted */ + ltd_got_update_log:1, /* Already got update log */ + ltd_connecting:1; /* target is connecting */ }; -#define OST_PTRS 256 /* number of pointers at 1st level */ -#define OST_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */ +#define TGT_PTRS 256 /* number of pointers at 1st level */ +#define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */ + +struct lod_tgt_desc_idx { + struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK]; +}; -struct lod_ost_desc_idx { - struct lod_ost_desc *ldi_ost[OST_PTRS_PER_BLOCK]; +#define LTD_TGT(ltd, index) \ + ((ltd)->ltd_tgt_idx[(index) / \ + TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK]) + +#define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index) +#define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index) +struct lod_tgt_descs { + /* list of known TGTs */ + struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS]; + /* Size of the lod_tgts array, granted to be a power of 2 */ + __u32 ltd_tgts_size; + /* number of registered TGTs */ + __u32 ltd_tgtnr; + /* bitmap of TGTs available */ + struct cfs_bitmap *ltd_tgt_bitmap; + /* TGTs scheduled to be deleted */ + __u32 ltd_death_row; + /* Table refcount used for delayed deletion */ + int ltd_refcount; + /* mutex to serialize concurrent updates to the tgt table */ + struct mutex ltd_mutex; + /* read/write semaphore used for array relocation */ + struct rw_semaphore ltd_rw_sem; }; -#define OST_TGT(dev,index) \ - ((dev)->lod_ost_idx[(index) / \ - OST_PTRS_PER_BLOCK]->ldi_ost[(index)%OST_PTRS_PER_BLOCK]) +struct lod_avoid_guide { + /* ids of OSSs avoid guidance */ + __u32 *lag_oss_avoid_array; + /* number of filled array items */ + unsigned int lag_oaa_count; + /* number of allocated array items */ + unsigned int lag_oaa_size; + /* bitmap of OSTs avoid guidance */ + struct cfs_bitmap *lag_ost_avoid_bitmap; + /* how many OSTs are available for alloc */ + __u32 lag_ost_avail; +}; struct lod_device { struct dt_device lod_dt_dev; struct obd_export *lod_child_exp; struct dt_device *lod_child; - cfs_proc_dir_entry_t *lod_proc_entry; struct lprocfs_stats *lod_stats; + spinlock_t lod_connects_lock; int lod_connects; - int lod_recovery_completed; + unsigned int lod_recovery_completed:1, + lod_initialized:1, + lod_lmv_failout:1, + lod_child_got_update_log:1; /* lov settings descriptor storing static information */ struct lov_desc lod_desc; - /* use to protect ld_active_tgt_count and all ltd_active */ - cfs_spinlock_t lod_desc_lock; + /* protect ld_active_tgt_count, ltd_active and lod_md_root */ + spinlock_t lod_lock; - /* list of known OSTs */ - struct lod_ost_desc_idx *lod_ost_idx[OST_PTRS]; + /* Description of OST */ + struct lod_tgt_descs lod_ost_descs; + /* Description of MDT */ + struct lod_tgt_descs lod_mdt_descs; - /* Size of the lod_osts array, granted to be a power of 2 */ - __u32 lod_osts_size; - /* number of registered OSTs */ - int lod_ostnr; - /* OSTs scheduled to be deleted */ - __u32 lod_death_row; - /* bitmap of OSTs available */ - cfs_bitmap_t *lod_ost_bitmap; + /* Recovery thread for lod_child */ + struct ptlrpc_thread lod_child_recovery_thread; /* maximum EA size underlied OSD may have */ unsigned int lod_osd_max_easize; + /* maximum size of MDT stripe for Data-on-MDT files. */ + unsigned int lod_dom_max_stripesize; - /* Table refcount used for delayed deletion */ - int lod_refcount; - /* mutex to serialize concurrent updates to the ost table */ - cfs_mutex_t lod_mutex; - /* read/write semaphore used for array relocation */ - cfs_rw_semaphore_t lod_rw_sem; - + /*FIXME: When QOS and pool is implemented for MDT, probably these + * structure should be moved to lod_tgt_descs as well. + */ /* QoS info per LOD */ - struct lov_qos lod_qos; /* qos info per lod */ + struct lod_qos lod_qos; /* qos info per lod */ /* OST pool data */ - struct ost_pool lod_pool_info; /* all OSTs in a packed array */ - int lod_pool_count; - cfs_hash_t *lod_pools_hash_body; /* used for key access */ - cfs_list_t lod_pool_list; /* used for sequential access */ - cfs_proc_dir_entry_t *lod_pool_proc_entry; + struct ost_pool lod_pool_info; /* all OSTs in a packed array */ + int lod_pool_count; + struct cfs_hash *lod_pools_hash_body; /* used for key access */ + struct list_head lod_pool_list; /* used for sequential access */ + struct proc_dir_entry *lod_pool_proc_entry; enum lustre_sec_part lod_sp_me; - cfs_proc_dir_entry_t *lod_symlink; + struct proc_dir_entry *lod_symlink; + struct dentry *lod_debugfs; + + /* ROOT object, used to fetch FS default striping */ + struct lod_object *lod_md_root; +}; + +#define lod_osts lod_ost_descs.ltd_tgts +#define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap +#define lod_ostnr lod_ost_descs.ltd_tgtnr +#define lod_osts_size lod_ost_descs.ltd_tgts_size +#define ltd_ost ltd_tgt +#define lod_ost_desc lod_tgt_desc + +#define lod_mdts lod_mdt_descs.ltd_tgts +#define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap +#define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr +#define lod_mdts_size lod_mdt_descs.ltd_tgts_size +#define ltd_mdt ltd_tgt +#define lod_mdt_desc lod_tgt_desc + +struct lod_layout_component { + struct lu_extent llc_extent; + __u32 llc_id; + __u32 llc_flags; + __u32 llc_stripe_size; + __u32 llc_pattern; + __u16 llc_layout_gen; + __u16 llc_stripe_offset; + __u16 llc_stripe_count; + __u16 llc_stripes_allocated; + char *llc_pool; + /* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */ + struct ost_pool llc_ostlist; + struct dt_object **llc_stripe; + __u32 *llc_ost_indices; +}; + +struct lod_default_striping { + /* default LOV */ + /* current layout component count */ + __u16 lds_def_comp_cnt; + __u16 lds_def_mirror_cnt; + /* the largest comp count ever used */ + __u32 lds_def_comp_size_cnt; + struct lod_layout_component *lds_def_comp_entries; + /* default LMV */ + __u32 lds_dir_def_stripe_count; + __u32 lds_dir_def_stripe_offset; + __u32 lds_dir_def_hash_type; + /* default file striping flags (LOV) */ + __u32 lds_def_striping_set:1, + lds_def_striping_is_composite:1, + /* default dir striping flags (LMV) */ + lds_dir_def_striping_set:1; +}; + +struct lod_mirror_entry { + __u16 lme_stale:1, + lme_primary:1; + /* mirror id */ + __u16 lme_id; + /* start,end index of this mirror in ldo_comp_entries */ + __u16 lme_start; + __u16 lme_end; }; -/* - * XXX: shrink this structure, currently it's 72bytes on 32bit arch, - * so, slab will be allocating 128bytes - */ struct lod_object { - struct dt_object ldo_obj; - - /* if object is striped, then the next fields describe stripes */ - __u16 ldo_stripenr; - __u16 ldo_layout_gen; - __u32 ldo_stripe_size; - char *ldo_pool; - struct dt_object **ldo_stripe; - /* to know how much memory to free, ldo_stripenr can be less */ - int ldo_stripes_allocated; - /* default striping for directory represented by this object - * is cached in stripenr/stripe_size */ - int ldo_striping_cached:1; - int ldo_def_striping_set:1; - __u32 ldo_def_stripe_size; - __u16 ldo_def_stripenr; - __u16 ldo_def_stripe_offset; + /* common fields for both files and directories */ + struct dt_object ldo_obj; + struct mutex ldo_layout_mutex; + union { + /* file stripe (LOV) */ + struct { + __u32 ldo_layout_gen; + /* Layout component count for a regular file. + * It equals to 1 for non-composite layout. */ + __u16 ldo_comp_cnt; + /* Layout mirror count for a PFLR file. + * It's 0 for files with non-composite layout. */ + __u16 ldo_mirror_count; + struct lod_mirror_entry *ldo_mirrors; + __u32 ldo_is_composite:1, + ldo_flr_state:2, + ldo_comp_cached:1; + }; + /* directory stripe (LMV) */ + struct { + /* Slave stripe count for striped directory. */ + __u16 ldo_dir_stripe_count; + /* How many stripes allocated for a striped directory */ + __u16 ldo_dir_stripes_allocated; + __u32 ldo_dir_stripe_offset; + __u32 ldo_dir_hash_type; + /* Is a slave stripe of striped directory? */ + __u32 ldo_dir_slave_stripe:1, + ldo_dir_striped:1, + /* the stripe has been loaded */ + ldo_dir_stripe_loaded:1; + /* + * default striping is not cached, so this field is + * invalid after create, make sure it's used by + * lod_dir_striping_create_internal() only. + */ + struct lod_default_striping *ldo_def_striping; + }; + }; + /* file stripe (LOV) */ + struct lod_layout_component *ldo_comp_entries; + /* slave stripes of striped directory (LMV) */ + struct dt_object **ldo_stripe; }; +#define lod_foreach_mirror_comp(comp, lo, mirror_idx) \ +for (comp = &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_start]; \ + comp <= &lo->ldo_comp_entries[lo->ldo_mirrors[mirror_idx].lme_end]; \ + comp++) + +static inline bool lod_is_flr(const struct lod_object *lo) +{ + if (!lo->ldo_is_composite) + return false; + + return (lo->ldo_flr_state & LCM_FL_FLR_MASK) != LCM_FL_NONE; +} + +static inline int lod_set_pool(char **pool, const char *new_pool) +{ + int len; + + if (*pool == new_pool) + return 0; + + if (*pool != NULL) { + len = strlen(*pool) + 1; + OBD_FREE(*pool, len); + *pool = NULL; + } + if (new_pool != NULL) { + len = strlen(new_pool) + 1; + OBD_ALLOC(*pool, len); + if (*pool == NULL) + return -ENOMEM; + strlcpy(*pool, new_pool, len); + } + return 0; +} + +static inline int lod_set_def_pool(struct lod_default_striping *lds, + int i, const char *new_pool) +{ + return lod_set_pool(&lds->lds_def_comp_entries[i].llc_pool, new_pool); +} + +static inline int lod_obj_set_pool(struct lod_object *lo, int i, + const char *new_pool) +{ + return lod_set_pool(&lo->ldo_comp_entries[i].llc_pool, new_pool); +} + +/** + * Create new layout generation. + * + * The only requirement for layout generation is that it changes when + * the layout is modified, so a circular counter is sufficient for the + * low rate of layout modifications. + * + * Layout generation is also used to generate unique component ID. + * To detect generation overflow, we preserve the highest bit of the + * generation when it wrapped. + */ +static inline void lod_obj_inc_layout_gen(struct lod_object *lo) +{ + __u32 preserve = lo->ldo_layout_gen & ~LCME_ID_MASK; + lo->ldo_layout_gen++; + lo->ldo_layout_gen |= preserve; + /* Zero is not a valid generation */ + if (unlikely((lo->ldo_layout_gen & LCME_ID_MASK) == 0)) + lo->ldo_layout_gen++; +} + +struct lod_it { + struct dt_object *lit_obj; /* object from the layer below */ + /* stripe offset of iteration */ + __u32 lit_stripe_index; + __u32 lit_attr; + struct dt_it *lit_it; /* iterator from the layer below */ +}; struct lod_thread_info { - /* per-thread buffer for LOV EA */ - void *lti_ea_store; - int lti_ea_store_size; - struct lu_buf lti_buf; - struct ost_id lti_ostid; - struct lu_fid lti_fid; - struct obd_statfs lti_osfs; - struct lu_attr lti_attr; + /* per-thread buffer for LOV EA, may be vmalloc'd */ + void *lti_ea_store; + __u32 lti_ea_store_size; + /* per-thread buffer for LMV EA */ + struct lu_buf lti_buf; + struct ost_id lti_ostid; + struct lu_fid lti_fid; + struct obd_statfs lti_osfs; + struct lu_attr lti_attr; + struct lod_it lti_it; + struct ldlm_res_id lti_res_id; + /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */ + char lti_key[sizeof(struct lu_dirent) + + NAME_MAX]; + struct dt_object_format lti_format; + struct lu_name lti_name; + struct lu_buf lti_linkea_buf; + struct dt_insert_rec lti_dt_rec; + struct llog_catid lti_cid; + struct llog_cookie lti_cookie; + struct lustre_cfg lti_lustre_cfg; + /* used to store parent default striping in create */ + struct lod_default_striping lti_def_striping; + struct filter_fid lti_ff; + __u32 *lti_comp_idx; + size_t lti_comp_size; + size_t lti_count; + struct lu_attr lti_layout_attr; + /* object allocation avoid guide info */ + struct lod_avoid_guide lti_avoid; }; extern const struct lu_device_operations lod_lu_ops; @@ -196,6 +485,11 @@ static inline struct lu_object *lod2lu_obj(struct lod_object *obj) return &obj->ldo_obj.do_lu; } +static inline const struct lu_fid *lod_object_fid(struct lod_object *obj) +{ + return lu_object_fid(lod2lu_obj(obj)); +} + static inline struct lod_object *lod_obj(const struct lu_object *o) { LASSERT(lu_device_is_lod(o->lo_dev)); @@ -213,16 +507,24 @@ static inline struct dt_object* lod_object_child(struct lod_object *o) struct dt_object, do_lu); } -static inline struct dt_object *lu2dt_obj(struct lu_object *o) -{ - LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev))); - return container_of0(o, struct dt_object, do_lu); -} - -static inline struct dt_object *dt_object_child(struct dt_object *o) +static inline bool lod_obj_is_striped(struct dt_object *dt) { - return container_of0(lu_object_next(&(o)->do_lu), - struct dt_object, do_lu); + struct lod_object *lo = lod_dt_obj(dt); + int i; + + if (!dt_object_exists(dt_object_child(dt))) + return false; + + if (S_ISDIR(dt->do_lu.lo_header->loh_attr)) + return lo->ldo_dir_stripe_count != 0; + + for (i = 0; i < lo->ldo_comp_cnt; i++) { + if (lo->ldo_comp_entries[i].llc_stripe == NULL) + continue; + LASSERT(lo->ldo_comp_entries[i].llc_stripe_count > 0); + return true; + } + return false; } extern struct lu_context_key lod_thread_key; @@ -235,17 +537,121 @@ static inline struct lod_thread_info *lod_env_info(const struct lu_env *env) return info; } +static inline struct lu_name * +lod_name_get(const struct lu_env *env, const void *area, int len) +{ + struct lu_name *lname; + + lname = &lod_env_info(env)->lti_name; + lname->ln_name = area; + lname->ln_namelen = len; + return lname; +} + +static inline void lod_layout_get_pool(struct lod_layout_component *entries, + int count, char *pool, int len) +{ + int i; + + for (i = 0; i < count; i++) { + if (entries[i].llc_pool != NULL) { + strlcpy(pool, entries[i].llc_pool, len); + break; + } + } +} + #define lod_foreach_ost(__dev, index) \ if ((__dev)->lod_osts_size > 0) \ cfs_foreach_bit((__dev)->lod_ost_bitmap, (index)) +#define lod_foreach_mdt(mdt_dev, index) \ + cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index)) + +/* lod_dev.c */ +extern struct kmem_cache *lod_object_kmem; +int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod, + const struct lu_fid *fid, __u32 *tgt, int *flags); +int lod_sub_init_llog(const struct lu_env *env, struct lod_device *lod, + struct dt_device *dt); +void lod_sub_fini_llog(const struct lu_env *env, + struct dt_device *dt, struct ptlrpc_thread *thread); +int lodname2mdt_index(char *lodname, __u32 *mdt_index); +extern void target_recovery_fini(struct obd_device *obd); + /* lod_lov.c */ -void lod_getref(struct lod_device *lod); -void lod_putref(struct lod_device *lod); -int lod_add_device(const struct lu_env *env, struct lod_device *m, - char *osp, unsigned index, unsigned gen, int active); -int lod_del_device(const struct lu_env *env, struct lod_device *m, - char *osp, unsigned index, unsigned gen); +void lod_getref(struct lod_tgt_descs *ltd); +void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd); +int lod_add_device(const struct lu_env *env, struct lod_device *lod, + char *osp, unsigned index, unsigned gen, int mdt_index, + char *type, int active); +int lod_del_device(const struct lu_env *env, struct lod_device *lod, + struct lod_tgt_descs *ltd, char *osp, unsigned idx, + unsigned gen, bool for_ost); +int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod, + struct lod_tgt_descs *ltd, bool for_ost); +int lod_striping_load(const struct lu_env *env, struct lod_object *lo); +int lod_striping_reload(const struct lu_env *env, struct lod_object *lo, + const struct lu_buf *buf); + +int lod_get_ea(const struct lu_env *env, struct lod_object *lo, + const char *name); +static inline int +lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_LOV); +} + +static inline int +lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_LMV); +} + +static inline int +lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV); +} + +static inline void +lod_comp_set_init(struct lod_layout_component *entry) +{ + entry->llc_flags |= LCME_FL_INIT; +} + +static inline void +lod_comp_unset_init(struct lod_layout_component *entry) +{ + entry->llc_flags &= ~LCME_FL_INIT; +} + +static inline bool +lod_comp_inited(const struct lod_layout_component *entry) +{ + return entry->llc_flags & LCME_FL_INIT; +} + +/** + * For a PFL file, some of its component could be un-instantiated, so + * that their lov_ost_data_v1 array is not needed, we'd use this function + * to reduce the LOVEA buffer size. + * + * Note: if llc_ostlist contains value, we'd need lov_ost_data_v1 array to + * save the specified OST index list. + */ +static inline void +lod_comp_shrink_stripe_count(struct lod_layout_component *lod_comp, + __u16 *stripe_count) +{ + /** + * Need one lov_ost_data_v1 to store invalid ost_idx, please refer to + * lod_parse_striping() + */ + if (!lod_comp_inited(lod_comp) && lod_comp->llc_ostlist.op_count == 0) + *stripe_count = 1; +} + void lod_fix_desc(struct lov_desc *desc); void lod_fix_desc_qos_maxage(__u32 *val); void lod_fix_desc_pattern(__u32 *val); @@ -253,6 +659,22 @@ void lod_fix_desc_stripe_count(__u32 *val); void lod_fix_desc_stripe_size(__u64 *val); int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg); int lod_pools_fini(struct lod_device *m); +int lod_parse_striping(const struct lu_env *env, struct lod_object *mo, + const struct lu_buf *buf); +int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo, + const struct lu_buf *buf); +int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo, + struct lov_ost_data_v1 *objs, int index); +int lod_verify_striping(struct lod_device *d, struct lod_object *lo, + const struct lu_buf *buf, bool is_from_disk); +int lod_generate_lovea(const struct lu_env *env, struct lod_object *lo, + struct lov_mds_md *lmm, int *lmm_size, bool is_dir); +int lod_ea_store_resize(struct lod_thread_info *info, size_t size); +int lod_def_striping_comp_resize(struct lod_default_striping *lds, __u16 count); +void lod_free_def_comp_entries(struct lod_default_striping *lds); +void lod_free_comp_entries(struct lod_object *lo); +int lod_alloc_comp_entries(struct lod_object *lo, int mirror_cnt, int comp_cnt); +int lod_fill_mirrors(struct lod_object *lo); /* lod_pool.c */ int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count); @@ -263,18 +685,140 @@ void lod_pool_putref(struct pool_desc *pool); int lod_ost_pool_free(struct ost_pool *op); int lod_pool_del(struct obd_device *obd, char *poolname); int lod_ost_pool_init(struct ost_pool *op, unsigned int count); -extern cfs_hash_ops_t pool_hash_operations; +extern struct cfs_hash_ops pool_hash_operations; int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool); int lod_pool_new(struct obd_device *obd, char *poolname); int lod_pool_add(struct obd_device *obd, char *poolname, char *ostname); int lod_pool_remove(struct obd_device *obd, char *poolname, char *ostname); +struct lod_obj_stripe_cb_data; +typedef int (*lod_obj_stripe_cb_t)(const struct lu_env *env, + struct lod_object *lo, struct dt_object *dt, + struct thandle *th, + int comp_idx, int stripe_idx, + struct lod_obj_stripe_cb_data *data); +typedef bool (*lod_obj_comp_skip_cb_t)(const struct lu_env *env, + struct lod_object *lo, int comp_idx, + struct lod_obj_stripe_cb_data *data); +typedef int (*lod_obj_comp_cb_t)(const struct lu_env *env, + struct lod_object *lo, int comp_idx, + struct lod_obj_stripe_cb_data *data); +struct lod_obj_stripe_cb_data { + union { + const struct lu_attr *locd_attr; + int locd_ost_index; + }; + lod_obj_stripe_cb_t locd_stripe_cb; + lod_obj_comp_skip_cb_t locd_comp_skip_cb; + lod_obj_comp_cb_t locd_comp_cb; + bool locd_declare; +}; + +/* lod_qos.c */ +int lod_prepare_create(const struct lu_env *env, struct lod_object *lo, + struct lu_attr *attr, const struct lu_buf *buf, + struct thandle *th); +int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *); +int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *); +void lod_qos_rr_init(struct lod_qos_rr *lqr); +int lod_use_defined_striping(const struct lu_env *, struct lod_object *, + const struct lu_buf *); +int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo, + const struct lu_buf *buf); +int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo, + struct lu_attr *attr, struct thandle *th, + int comp_idx); +__u16 lod_comp_entry_stripe_count(struct lod_object *lo, + struct lod_layout_component *entry, + bool is_dir); +__u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo, + __u16 stripe_count); +void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod); + /* lproc_lod.c */ -extern struct file_operations lod_proc_target_fops; -void lprocfs_lod_init_vars(struct lprocfs_static_vars *lvars); +int lod_procfs_init(struct lod_device *lod); +void lod_procfs_fini(struct lod_device *lod); /* lod_object.c */ -int lod_object_set_pool(struct lod_object *o, char *pool); - +extern struct dt_object_operations lod_obj_ops; +extern struct lu_object_operations lod_lu_obj_ops; + +int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo, + struct lu_buf *buf, bool resize); +int lod_declare_striped_create(const struct lu_env *env, struct dt_object *dt, + struct lu_attr *attr, + const struct lu_buf *lovea, struct thandle *th); +int lod_striped_create(const struct lu_env *env, struct dt_object *dt, + struct lu_attr *attr, struct dt_object_format *dof, + struct thandle *th); +void lod_striping_free_nolock(const struct lu_env *env, struct lod_object *lo); +void lod_striping_free(const struct lu_env *env, struct lod_object *lo); + +int lod_obj_for_each_stripe(const struct lu_env *env, struct lod_object *lo, + struct thandle *th, + struct lod_obj_stripe_cb_data *data); +int lod_comp_copy_ost_lists(struct lod_layout_component *lod_comp, + struct lov_user_md_v3 *v3); + +/* lod_sub_object.c */ +struct thandle *lod_sub_get_thandle(const struct lu_env *env, + struct thandle *th, + const struct dt_object *sub_obj, + bool *record_update); +int lod_sub_declare_create(const struct lu_env *env, struct dt_object *dt, + struct lu_attr *attr, + struct dt_allocation_hint *hint, + struct dt_object_format *dof, struct thandle *th); +int lod_sub_create(const struct lu_env *env, struct dt_object *dt, + struct lu_attr *attr, struct dt_allocation_hint *hint, + struct dt_object_format *dof, struct thandle *th); +int lod_sub_declare_ref_add(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_ref_add(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_declare_ref_del(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_ref_del(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_declare_destroy(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_destroy(const struct lu_env *env, struct dt_object *dt, + struct thandle *th); +int lod_sub_declare_insert(const struct lu_env *env, struct dt_object *dt, + const struct dt_rec *rec, const struct dt_key *key, + struct thandle *th); +int lod_sub_insert(const struct lu_env *env, struct dt_object *dt, + const struct dt_rec *rec, const struct dt_key *key, + struct thandle *th, int ign); +int lod_sub_declare_delete(const struct lu_env *env, struct dt_object *dt, + const struct dt_key *key, struct thandle *th); +int lod_sub_delete(const struct lu_env *env, struct dt_object *dt, + const struct dt_key *name, struct thandle *th); +int lod_sub_declare_xattr_set(const struct lu_env *env, struct dt_object *dt, + const struct lu_buf *buf, const char *name, + int fl, struct thandle *th); +int lod_sub_xattr_set(const struct lu_env *env, struct dt_object *dt, + const struct lu_buf *buf, const char *name, int fl, + struct thandle *th); +int lod_sub_declare_attr_set(const struct lu_env *env, struct dt_object *dt, + const struct lu_attr *attr, struct thandle *th); +int lod_sub_attr_set(const struct lu_env *env, struct dt_object *dt, + const struct lu_attr *attr, struct thandle *th); +int lod_sub_declare_xattr_del(const struct lu_env *env, struct dt_object *dt, + const char *name, struct thandle *th); +int lod_sub_xattr_del(const struct lu_env *env, struct dt_object *dt, + const char *name, struct thandle *th); +int lod_sub_declare_write(const struct lu_env *env, struct dt_object *dt, + const struct lu_buf *buf, loff_t pos, + struct thandle *th); +ssize_t lod_sub_write(const struct lu_env *env, struct dt_object *dt, + const struct lu_buf *buf, loff_t *pos, + struct thandle *th, int rq); +int lod_sub_declare_punch(const struct lu_env *env, struct dt_object *dt, + __u64 start, __u64 end, struct thandle *th); +int lod_sub_punch(const struct lu_env *env, struct dt_object *dt, + __u64 start, __u64 end, struct thandle *th); + +int lod_sub_prep_llog(const struct lu_env *env, struct lod_device *lod, + struct dt_device *dt, int index); #endif -